Electric-lamp socket.



G. W. GOODRIDGEt ELECTRIC LAMP SOGKET. APPLIoATIoN FILED JUNE 4,A 1909.

1,024,129. f Patented Apr.23,1912

I To all whom it may concern.'

GILBERT W. GOODRIDG-E, ELECTRIC COMPANY, NECTICUT.

ELECTRIC-LAMI SOCKET.

Specification of Letters Patent.

Patented Apr. 23, 1912.

Application led .Tune 4, 1909. Serial No. 500,061.

Be it known that I, Gunnar ,W. Goon- RnJGE, a citizen ofthe United States of America, and residing at Bridge ort, in the county of Fairfield and State o Connecticut, have invented certain new and useful Improvements in Electric-Lamp Sockets, of

which the following is a specification.

The main object of my invention is to so construct a socket for incandescent electric lamps that when such a socket is wired u for suspension of the lamp by the electrlc conductors, the connections of the ends of the wires to the socket terminals will be relieved from the strain due to the` weight of the lamp, and its shade and shade holder, and further that the socket can be wired up in no other way, or in other words without bringing this strain relief into use.

In the accompanyin drawings, Figure l is a side elevation of a ey socket embodying my invention, the shell and cap and linings being indicated by dotted lines; Fig. 2 is a lan-view of the socketjaken out of its shell;

ig. 3 is another side view ofthe socket, partly in section on the line 33, Fig. 2.

I have shown myinvention as applied to a key-socket with the insulation formed of two switch mechanism controlled buttons of porcelain or other suitable insulating material. The upper button A and the lower button B, which contain in recesses in their adjacent faces any suitable by the key C, are referably secured together by metal stan ards D, but may be secured by any other suitable means. The lower button carries the usual screw shell S and central spring contact E to Edison type of lamp base. l

In the present instance, the standards D constitute the terminal plates and carry the binding screws d for the bared ends of the electric conductors. ton at a little distance from the recess for each terminal plate a vertical passage or hole G near the' circumference of the button,

and in the upper edge of the lower button I form two beveled recesses F, which when the two buttons are secured together as shown, will form continuations of the respective receive and hold the' Iare heldin I form in the top butwires are passed downward throu h these the wire ends outwardly when they can be grasped by the wireman and conveniently connected up under the binding screws d of the terminal plates.

It is intended-that the holes G shall be of a size to' receive with somefriction the covered wire of the size usually used for this work, and each holeG is at a suflicient dis.- tance from the adjacent wire terminal post D to give at m, Fig. l, a rectangular corner or abutment inthe insulation to roduce a sharp bend in the covered part o the wire and a corresponding frictional hold on it. I also prefer not to bevel the mouth or up'- per end of each hole G, as is ordinarily done holes G, Fig. 3, so that when the ends of 4 in the side wire grooves of socket porcelaine;

on its way to the outlet`opening in the capy H, Fig. 1.

As the insulating body fits the lined shell K without much play, it will be seen that the socket cannot be Wired up exce t by putting the wires through the holes G efore connecting their bared ends to the terminal posts, and consequently the strain relief consisting ofthe frictional hold of the corners a: and y and of the walls of the hole Gr" upon each wire necessarily come into use. In other words the most careless wireman cannot wire up the socket without bringing the strain relief into play. The holes or passages are` of.. such character that the wires place. without the aid of the outer shell.

I claim as my invention:

1.' An electric 1am socket having an im sulating body with amp terminals oh its lower face and with wire terminals on its sides, the insulating body having vertical holes through it for the passage of the wires near the periphery of the insulating body and at a little distance from Athe wire terminals. v

An electric lamp socket having a two l A l' button insulating body with lamp terminals In testimony whereof have signed my.

on its` lowei` face and with wire terminals on nameto this specification, in the presen of 

